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This week Cisco Systems Inc, unveiled a new series of switches in its catalyst 2000 line.

Cisco 2960-X series switches is upgraded version of 2960S series switches are also stackable Gigabit Ethernet switches. It is equipped with “Flexstack Plus”, a doubled version of Flexstack. Catalyst 2960X supports upto 8 switches in a stack (Only 4 in Flexstack) and 384 ports (48 Ports x 8 switches). Stacking bandwidth is also upgraded to 80 Gbps and Convergence is reduced to 100 milli seconds.Continue reading →

Cisco Port security is an important feature to most of my customer. Especially Software development companies and BPOs are the constant customer types asking for this feature to restrict devices connecting to their network.

Cisco Port security is to limit the devices that are connecting to the Wired network via switches. This feature checks for MAC address of the device that has just accessed the switch port and verifies whether that device is allowed to connect wired network or not. The wireless equivalent of this feature is MAC address Authentication. The number of addresses the feature accepts is equivalent to the maximum limit of MAC address of the switch.Continue reading →

The Much awaited Sale of Linksys is now happening. Thursday January 24 2013, Belkin announced its intent to acquire Cisco’s Home business unit, Linksys. Cisco has confirmed this announcement in its blog that company is pleased to preserve Linksys business and create a win-win relationship. Hilton Romanski, Cisco’s VP of Corporate Business Development, said “Linksys has long been an important member of the Cisco family and we are confident that we have found the best buyer in Belkin.”Continue reading →

How many times have you been confused by Cisco command output? Have you ever mis-interpreted any information and ran into problems? Have been frustrated about cluttered output of cisco command output in CLI? Ever complained to friends and fellow engineers about clear output format like what other vendors do with web interface. Well most of engineers do. But if you get used to do with CLI commands then its easier for you.For newbie there is a small need. Continue reading →

Anybody know how many Logo transformation projects went in Cisco Systems inc. Well I just found out not only a numeric answer to this question, but also showing you the different logos that has been with Cisco’s products.

Well If you look at Cisco’s new logo for the first time you may find little bit difficult to understand. Do you believe that since inception of Cisco they are following a same concept in their logos.

When configuring bill of materials, some times ago, in Cisco’s Nextgen configuration tool available in commerce workspace, I found a new fiber modules in the option list. Tried to investigate what are those and that leads to the below findings.Continue reading →

Recently I consulted for a wireless case at a popular hospital at Chennai. Had a long discussion with customer about their existing network and budding requirement for wireless. We spoke about how good for a hospital to use wireless. We spoke about how patients who suffered to be in hospital premises drastically will feel better to have some outside connection via Internet. But limited, accounted and secure internet connection should be provided under his doctor’s permission. Guest access and Captive portal are the way to provide these functionality to their gonna-implement wireless infrastructure. Below are summarized points that I have documented from our discussion.

What is Guest access and Captive Portal?

Have you ever been at a free Wi-Fi zone? Have you ever tried to access Wi-Fi service provided in Hotels like Raintree, Lemontree, Hilton, Hyatt?

IEEE 802.11ac Specification and Standards for High Speed wireless

IEEE 802.11ac Task group is in development of Higher throughput rates on 5Ghz band than what now 802.11n achieves now. This is currently under Draft 3.0 [As of First week of August 2012] and expected to matured and ratified out by this year end and would become a common standard somewhere around 2016.Continue reading →